2013年8月8日 · The Oberon edition is available as a free PDF, but the PL/0 chapter was removed and expanded into a second book (also free online), Compiler Construction. This expanded …

2011年8月12日 · Constants are expressions with a fixed value. Literals are the most obvious kind of constants. They are used to express particular values within the source code of a program.

2016年1月27日 · So pp[0] points to the address of p, which is 0x2000, and by dereferencing I would expect to get the contents of address 0x2000

2014年3月27日 · I am having a hard time making my PL/SQL code work. I have a constraint that makes sure 5 digits have been input. The constraint works for any number that does not use a …

2016年1月6日 · I am selecting id where it cannot be equal to 0, nor can the value be (null). I wrote: WHERE id IS NOT NULL (+) and id not in ('0') I got 2 errors Error(9,5): PL/SQL: SQL …

2011年10月10日 · Given the following EBNF grammar (found on wikipedia for PL/0), what is an expression preceded by the "ODD" keyword? I would like to implement the simple language as …

2018年1月13日 · Assuming the assignment is to exclude all strings that consist entirely of zero's, at most one decimal point and possibly leading and/or trailing spaces, here is one way to do it, …

2014年12月22日 · 0L is a long integer value with all the bits set to zero - that's generally the definition of 0.The ~ means to invert all the bits, which leaves you with a long integer with all …

2016年12月7日 · Spacing utilities that apply to all breakpoints, from xs to xxl, have no breakpoint abbreviation in them. This is because those classes are applied from min-width: 0 and up, and …

2014年12月8日 · OV = 0 UP = 0 EI = 1 PL = 0 ZR = 0 AC = 0 PE = 0 CY = 0 After the 3 instructions. OV = 0 UP = 0 EI = 1 PL = 0 ZR = 1 AC = 0 PE = 1 CY = 0 Where the flags …